Summoner and BLM differences

[AspectOfWinter]

As to Black Mage, I didn't see it implied that it causes you to become mean and evil. It was a cautionary tale of hubris. Black magic is power, power begets hubris. The type of person who seeks power for the sake of seeking power tends to be prone to hubris, overstep their limits, and turn their friends into a fiendish hellbeast that they can barely even contain, much less defeat.

The quote I'm referring to is:

Ququruka: "You may have taken the black, but time is needed before the black takes you - before it permeates mind and body, and colors every fiber of your being dark as pitch."

[gornotck]

That doesn't imply any evil or mean spiritedness, really. Ququruka is saying that you may have become a black mage, but that it will take time to master being a black mage. His closing comment is along the lines of 'Do not fear the power to destroy. Master it and destroy what would destroy you.'